Developer John Tornblom has pushed a few updates to his PS5 Payload SDK Implementation, adding in particular sprx autoloading. Scene member Ifaicompa has released a compiled ISO of the ELF Loader, including John’s latest changes, and releasing it as v1.6.1.

What is BD-JB for PS4/PS5

BD-JB is a series of exploits (an exploit chain) that allows exploitation of the PS4 and PS5, up to firmwares 9.04 and 4.51 respectively, revealed by Hacker TheFloW in 2022. The hacking scene has been creating and maintaining a series of tools relying on these vulnerabilities, in particular to load and execute unsinged code (binary payloads and/or ELF files) on the PS5.

Because it relies on vulnerabilities in the Blu-Ray layer of Sony’s consoles, in the case of the PS5, this exploit is not compatible with digital edition PS5s. Those running a Digital Edition of the PS5 might want to try the Webkit exploit, which is compatible up to firmware 4.51 included.

TheFloW has used the kernel exploit in conjunction with the bd-jb exploit chain to gain kernel access on the PS5, and disclosed BD-JB in 2022

What’s the PS5 Payload SDK

From the Readme:

This is an SDK for developing ELF payloads targeted at exploited PS5s running the BD-J ELF loader. Several artifacts in this repository originate from the PS5SDK project.

Download PS5 BD-JB Elf Loader 1.6.1

The Elf Loader is a payload for the PS5 that lets you send ELF files through a TCP connection over port 9020. Lets you easily send and execute code on the PS5. Because it relies on the BD-JB exploit, it is an ISO file that need to be burned on a Blu-Ray disc (use rewriteable ones preferably, given how frequently these tools change). You can find Blu Ray burners for reasonably cheap on Amazon and other retailers (make sure they support BD-RE and Dual Layer DL). TheFloW has specified he used Rewritable Verbatim discs (BD-RE) in his experiments. (affiliate links).

• You can download Ifaicompa’s build here.
• PS5 Payload SDK source here. (ELF loader source)

Source: Ifaicompa